ai.grakn.engine.tasks.manager

Interface TaskManager

All Superinterfaces:

AutoCloseable, Closeable, TaskSubmitter

All Known Implementing Classes:

RedisTaskManager, StandaloneTaskManager

public interface TaskManager
extends TaskSubmitter, Closeable

The base TaskManager interface.

Provides common methods for scheduling tasks for execution and stopping task execution. At the moment it assumes that upon construction, some threads will be started that take care of consuming the elements of the queue.

Author:

Denis Lobanov, alexandraorth

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	start() Make sure the manager is initialized and starts processing tasks
void	stopTask(TaskId id) Stop a Scheduled, Paused or Running task.
TaskStateStorage	storage() Return the StateStorage instance that is used by this class.

Methods inherited from interface ai.grakn.engine.tasks.manager.TaskSubmitter

addTask

Methods inherited from interface java.io.Closeable

close

Method Detail

start

CompletableFuture<Void> start()

Make sure the manager is initialized and starts processing tasks

stopTask

void stopTask(TaskId id)

Stop a Scheduled, Paused or Running task. Task's .stop() method will be called to perform any cleanup and the task is killed afterwards.

Parameters:

id - ID of task to stop.

storage

TaskStateStorage storage()

Return the StateStorage instance that is used by this class.

Returns:

A StateStorage instance.